Funnel



K. F. BLACK Sept. 3, 1929.

BUNNEL Filed May 28, 1928 2 Sheets-Sheet Afforney K. F. BLACK FUNNEL Filed May 28. 1928 Sept. 3, 1929. I

2 S heetsSheet 2 Patented Sept. 3, 1929.

UNITED STATES PATENT OFFICE.

FUNNEL.

Application filed May 28, 1928. Serial No. 281,292.

My present invention relates to improvements in a funnel and appertains particularly to a novel form thereof embodying an air vent tube.

An object is to provide a funnel through the medium of which liquid may be more readily and more quickly introduced into a receiving vessel due to the provision of an independent outlet whereby the atmosphere displaced by the liquid entering through the funnel need not choke the spout and bubble up the inflowing steam, retarding the flow and generally detracting from the efficiency as is common in devices of this sort.

A further object is to provide a funnel having an air vent pipe rolled into the seam at the adjoining edges of the material flowing the conical upper part and the spout.

A further object is to provide a funnel having an air vent pipe in the seam thereof, as described, that is reinforced at the juncture of the conical upper part and the spout.

A still further object is the provision of a funnel as described that is characterized by structural simplicity, greater durability and capable of manufacture at a reasonable cost being thereby rendered commerciallydesirable.

To the accomplishment of these and related objects, my invention resides in the construction, combination and arrangement of parts as shall be hereinafter more fully described, illustrated in the accompanying drawings and pointed out in the claims hereunto appended.

The invention will be best understood and can be more clearly described when reference is had to the drawings, forming a part of this disclosure, wherein like characters indicate like parts throughout the several views.

In the drawings Figure l is an elevation of my improved funnel;

Figure 2 is a vertical section thereof;

Figures 3 and 4 are horizontal sections as taken on the lines 3-3 and 4-4; respectively of Figure 2.

Figure 5 is an elevation of a slightly modified form;

Figure 6 is a plane of the blank from which the spout part of this modified form is constructed; and

Figure 7 is a section thereof on the hori zontal line 77 of Figure 5.

In this invention it is intended to secure all the advantages associated with the provision of an air vent pipe in a funnel without necessitating extraneous parts or added cost and yet not be weakened or inferior. To that end I construct my funnel with a conical upper portion 8 of conventional design except that the adjoining edges thereof, usually connected with a doubled seam, as is well known in the art, have this seam on the outer side opened out to provide an open pipe 9 therethrough by rounding the inner edge 10, usually doubled back and pressed almost flat, into an open semi-circle and rolling the edge 11 thereabout, continuing it in its concentric course through one and a half complete turns.

The spout piece 12, which may taper slightly in conformity with present practice, has also an air vent pipe running through its seam which however is rolled on the inside thereof to maintain the regular outer contour I of the spout. Here the inner edge 13 is rolled in a substantial circle through a complete round While the outer edge 14 is rolled in therewith sufiiciently to insure a durable connection. The inner face of the exterior of the pipe thus formed is pressed in as at 15 to more generally conform to the inside contour of the spout and occupy as little space as possible.

Into the upper end of the spout 12, the re duced lower end of the conical upper portion 8 is introduced in such a way that the air vent pipe formed on the outside of the conical up per portion 8 registers and communicates with the air vent pipe formed on the inside of the spout 12 and is effectively soldered or otherwise united in any way found satisfactory in practice.

In this form, to obviate the possibility of displacement of the communicating air vent pipes in the registering seams, due to battering and hard usage, I insert a reinforcing liner 16 in the form of a tube of small diameter into the air vent pipe, running it from the opening of the air vent pipe in the bottom of the spout, up past the union of the seams in the conical upper portions and the spout, and into the seam in the former.

In the modified form of funnel shown in Figure 5, the air vent pipe 17 in the upper conicalportion 18 is rolled in an exterior seam exactly as explained in the former instance but the'spout 19, formed from a sheet 20 out after the pattern shown in Figure 6 has its inner edge 21 alone rolled into the air vent pipe 22 while the outer edge 23, preferably angular as seen in Figure 5, is but extended past the joint and suitably soldered laterally to the outer side of the spout body. It is perfectly obvious that the spout 12 shown in the forms illustrated in Figures 1 to 4 inclusive could have been treated in this way without in any way altering the function or essential construction thereof.

In this present modified form of spout 19 however, the pattern sheet 20 includes an upstanding wing 24 along the inner marginal edge 21 that is adapted, when this edge is rolled into the air vent pipe 22, to provide an upstanding continuation 25 of this pipe for insertion into the lower and adjoining end of the air vent pipe 17 in the upper conical portion 18 thus proving an equivalent for the juncture reinforcing tube 16 used in the previously described form.

In both forms illustrated, the air vent pipes 9 and 17 are shown as terminating adjacent to but short of the upper margin or rim of the funnel, the purpose of which is to avoid interference with the rolling of the usual head or flange with which sheet metal devices of this sort are finished and also to take advantage of the shielding protection such a flange might afford.

The detailed structure and assembly of my funnel, it is felt, has thus been thoroughly described so it should suffice in conclusion to say that from the foregoing description taken in connection with the accompanying drawings, it will be manifest that a funnel is provided that will fulfill all the necessary requirements of such a device, but as many changes could be made in the above description and many apparently widely different embodi-j ments of my invention constructed within the scope of what is claimed without departing from the spirit or scope thereof, it is intended that all matters contained in the accompanying specification and drawings shall be interpreted as illustrative and not in a limited sense.

What I claim as new and desire to secure by Letters Patent is 1. A sheet metal funnel comprising a conical upper portion and a spout, a'hollow seam rolled on the outer side of said conical upper portion, a hollow seam rolled on the inner side of said spout registering with the hol- 7 low seam of said conical upper portion, and

an-upward continuation of the hollow seam in said spout extending into the hollow seam in said conical upper portion.

2. A sheet metal funnel comprising a conical upper portion and a spout, a hollow seam' rolled on the outer side of said conical upper portion, and a hollow seam rolled on the inner side of said spout registering with the hollow seam of said conical upper portion; said 1101- low seam on the inner side of said spout bemg concaved on its inner s de to more generally conform to the contour of the said spout.

3. A sheet metal funnel comprising a confrom one edge while the other edge is overlapped and soldered to the body of the spout along the angular line.

In testimony whereof I hereunto affix my signature.

KERMIT F. BLACK. a s.] 

